<template>
  <div>
    <!--查询表单-->
    <el-form :inline="true" class="demo-form-inline">
      <el-form-item>
        <el-input v-model="courseQuery.title" placeholder="课程名称"/>
      </el-form-item>

      <el-form-item>
        <el-select v-model="courseQuery.status" clearable placeholder="课程状态">
          <el-option value="Normal" label="已发布"/>
          <el-option value="Draft" label="未发布"/>
        </el-select>
      </el-form-item>

      <el-button type="primary" icon="el-icon-search" @click="getList()">查询</el-button>
      <el-button type="default" @click="resetData()">清空</el-button>
    </el-form>

    <!-- 表格 -->
    <el-table
      :data="courseList"
      border
      fit
      highlight-current-row>

      <el-table-column
        label="序号"
        width="70"
        align="center">
        <template slot-scope="scope">
          {{ scope.$index + 1 }}
        </template>
      </el-table-column>

      <el-table-column prop="title" label="课程名称" width="80" />

      <el-table-column label="课程状态" width="80">
        <template slot-scope="scope">
          {{ scope.row.status==='Normal'?'已发布':'未发布' }}
        </template>
      </el-table-column>

      <el-table-column prop="lessonNum" label="课时数" />

      <el-table-column prop="gmtCreate" label="添加时间" width="160"/>

      <el-table-column prop="viewCount" label="浏览数量" width="60" />

      <el-table-column label="操作" width="200" align="center">
        <template slot-scope="scope">
          <router-link :to="'/teacher/edit/'+scope.row.id">
            <el-button type="primary" size="mini" icon="el-icon-edit">编辑课程基本信息</el-button>
          </router-link>
          <router-link :to="'/teacher/edit/'+scope.row.id">
            <el-button type="primary" size="mini" icon="el-icon-edit">编辑课程大纲息</el-button>
          </router-link>
          <el-button type="danger" size="mini" icon="el-icon-delete" @click="removeById(scope.row.id)">删除课程信息</el-button>
        </template>
      </el-table-column>
    </el-table>

    <!-- 分页 -->
    <el-pagination
      :current-page="page"
      :page-size="size"
      :total="total"
      style="padding: 30px 0; text-align: center;"
      layout="total, prev, pager, next, jumper"
      @current-change="getList"
    />
  </div>
</template>

<script>
  import course from '@/api/course/list'
  export default {
      name: "list",
      data(){
        return{
          courseList:[],
          courseQuery:{},
          page:1,
          size:4,
          total:0
        }
      },
      methods:{
        //查询所有课程
        findAll(){
          course.findAll().then(res=>{
            this.courseList = res.data.courses
          })
        },
        //根据id删除课程
        removeById(id){
          this.$confirm('此操作将永久删除该课程, 是否继续?', '提示', {
            confirmButtonText: '确定',
            cancelButtonText: '取消',
            type: 'warning'
          }).then(() => { //点击确定
            course.deleteById(id).then(res=>{
              this.$message({
                type: 'success',
                message: '删除成功!'
              })
              //刷新列表
              this.findAll()
            })
          })
        },
        //条件查询带分页
        getList(page){
          this.page = page
          course.conditionAndPageFind(this.courseQuery,this.page,this.size).then(res=>{
            this.courseList = res.data.eduCoursePage.records
            this.page = res.data.eduCoursePage.current
            this.size = res.data.eduCoursePage.size
            this.total = res.data.eduCoursePage.total
          })
        },
        //清空查询表单
        resetData(){
          this.courseQuery = {}
        }
      },
      created() {
        this.getList(1)
      }
    }
</script>

<style scoped>

</style>
